Carriage-lifting jack



(No Model.) 'z's'heets-sn'eet Y- D'. SIMMONS. l ACARRIAGE LIFTING JACK.

No. 377,784l

Ypatenfed`1eb-1-4, 1888.

N: PETERS. Pwqngqpher. washinm. DA a (No Model.) I I v2'Sheetslheet f D.SIMMONS.

CARRIAGE LAIFI'ING JACK.

N8. 877.5784; 1 888888 1v Peb; 141,'1888.`

UNITED 'STATES PATENT OFFICE.

DAVID SIMMONS, OF NORTHVILLE, MICHIGAN.

CARRIAGE-LIFTING JACK.

SPECIFICATION forming part of Letters Patent No. 377,784, dated February14, 1888.

l i Application filed October 15, 1887. Serial No. 252.425. (No model.)

To @ZZ whom it may concern.-

Be it known that I, DAVID SIMMoNs, a citizen of the UnitedStates,residing at Northville, in the county of Wayne and State ofMichigan, have invented certain new and useful'Improvements inCarriage-Lifting Jacks; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled lin the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters and figures of reference marked thereon,which form a part ofthis specification.

This invention relates to a device for elevating wagons and carriages,andis commonly .known asa wagon-jack, the object of which is to provideav device for elevating wagons right arm or plunger, which by the actionof and carriages, to repair or lubricate the axles thereof, that will besimple, durable, easily operated, and one that may be adjusted to enableits ready use on the various heights of vehicles.

The invention consists, briedy, of ya base support having a metal box orcase mounted thereon, which receives the lower ends of the side rails'which constitute vthe frame of the device. Pivotally attached betweenthe upright sides of themetal case is an arm or lever carrying on thepivoted end a circular metal head having a series of cogs or teeth onits periphery, which engage with the cogs of a metal plate attached tothe front face of an upthe lever is caused to reciprocate verticallybetween the upright sides; and pivoted with said lever is a metal dog,which is automatically operated with the lever by means of lugs on themetal head of said lever, which have engagement with said dog, and bytheaction of the lever is caused to be engaged with or disengaged fromthe cogs of the plunger. And to enable the raising of vehicles-whoseheight is greater than the distance reached by said plunger, I employ anextension-arm or auxiliary plunger, which is also located between theside rails and'adjacent to the former plunger, having connectiontherewith by means of a link or loop, which is pivotally attached to thefront face of the plunger extending around the frame, and has engagementwith a toothed or cogged metal plate secured to the back face said dogand lever.

View of the operating arm or lever and its cir-y of the auxiliaryplunger, whereby Asaid plunl inafter more fully setv forth, and theessential features of the invention pointed out particularly in theclaims. l

In the accompanying drawings, forming a partof the specification, Figurelis an isometrical view of the complete device. Fig. 2 is a front faceview of Fig. 1, having the lever and dog removed to show construction'ofthe toothed metal plate which engages with Fig. 3 is an isometricaloularlytoothed metal head. Fig. 4 is an enlarged view of the metal dog.Fig. 5 is aside elevation of the device, having the metal case partlybroken away. Fig. 6 is a vertical section taken on dotted line :v x ofFig. l, having lever and dog removed. Fig. 7 is a detail view ofthe'extension or auxiliary plunger.

With reference to the drawings, B represents the base u board, on whichis mounted and secured by screws 2 the metal case or sup-` port H, whichreceives the lower endsiof the side rails, S, being attached 'thereto byscrews 5.

' C shows a plunger located between the side rails, S, and extends thefull lengthA thereof, having attached to its front face at the base, bymeans of screws 4, a metal plate, P, on the face of which is a series ofcogs, f; and c is a journal-bearing box, also secured to the front faceof said plunger by screws 3, which receives and pivotally supports thelink or loop L, passing around the frame of the device, and engages atthe rear thereof with the teeth Z of the metal Aplate Z, which is letinto andsecured by screws t t to the back face of the auxiliary plungerO, as shown in Figs. l, 5, and 6.

A is an arm or lever having the handle h at the free end, and isprovided at the other end with a circular metal head, E, carrying aseries of cogs, u, on its periphery, and passes over the hole O of themetal dog and the holes s in IOO the sides of the metal case H passes abolt, a, having the nut a for securing said parts in position, as shownin Figs. 1 and 5. It will be observed that when the lever A is in suchposition the 'cogs n of the metal head E mesh with the cogs f of theplate l?, attached to the plunger C, and that the lugs e e' on the metalhead E are in such position and relation to the dog D as toautomatically,with the movement of the lever, actuate said dog, engagingand disengaging it from the cogs f of said metal plate P, to hold orrelease the plunger C when raising or lowering a vehicle, as will bemore fully set forth.

b is a strip or metal band which passes around the upper ends of theside rails, S, for binding said rails together and securing the plungerO and extension or auxiliary plunger C in position between the saine.

rlhe operations of the parts are as follows: The device, as shown inFig. 1, is placed under the vehicle or object to be elevated in suchposition that the plunger,when forced up by the action of the eogs andlever, will come in contact with said object, elevating the same to thedesired height, when by releasing the pressure on said lever the dog Dwill engage with one of the series of cogs f and retain said plunger andobject in an elevated position; and to release or lower the same thelever is again thrown down until the lug e on the metal head E strikesthe dog D and throws it back to the dotted position shown in Fig. 5,when by releasing the pressure on said lever the plunger and object willdescend,carrying thelever back to the position shown in Fig. 1, and assaid lever passes back to such position the lug e of the metal head Eengages with the nose m of the dog, throwing it back to its former position shown in Fig. l. When desirous of elevating an object ot' greaterheight than the Adistance reached by the plunger C, theextension orauxiliary plunger C', which is carried with the plunger C by the loop orlink L, may

be raised or extended, by grasping the upper end and raising it with thehand,the link will drop over the notches, holding the plunger Celevated, as shown by dotted lines in Fig. when saidlink will engagewithone of thelower notches or teeth, Z', of the plate Z, th us holding saidplunger Cin an extended position,where by when the lever is thrown downand the plungers raised, as before stated, a greater distance will bereached with the same movement of the lever.

It will be observed that as the link L is hung on an incline,and beingpivotally supported at its front side, the rear side will naturally orby gravitation engage with the teeth of the plate Z as the auxiliaryplunger is extended.

Having thus fully set forth my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. In a wagonjack, the combination of the base, the metal case attachedthereto, the side rails, the plungers C C', located between said siderails, the toothed plate P, attached to the plunger C, the toothed plateZ, attached to the plunger O', thelink coupling said plungers, thehand-lever having the toothed head which engages with the teeth of theplate P, the dog D, and the head E, having lugs e e', engaging with saiddog, as and for the purposes specified.

2. In combination with the base, the metal case, the side rails, themetal band d,v the plungers G C', each having a toothed plate, as shown,the link L, pivoted to the plunger C, the lever A, having the toothedhead E, with lugs ee',and the dog having the nose m, said dog and leverbeing pivoted to the inet-al case, sub stantially as and for thepurposes specified.

In testimony whereof I ax my signature in presence of two witnesses.

' DAVID SIMMONS.

Witnesses:

WILLIAM H. AMBLER, FRANK N. CLARK.

